公开(公告)号：US10058806B2

公开(公告)日：2018-08-28

申请号：US15022646

申请日：2013-11-07

Applicant: MIURA CO., LTD.

Inventor： Tomoaki Tange ,  Akinori Kawakami ,  Hitoshi Shiraishi ,  Yasutomo Zenman ,  Yasuhiko Saito ,  Takamichi Ide

IPC: B01D33/50 ,  B01D33/46 ,  B01D33/80 ,  B63B13/00 ,  C02F1/00 ,  B01D33/11 ,  B63J4/00 ,  C02F103/00

CPC classification number: B01D33/503 ,  B01D33/11 ,  B01D33/463 ,  B01D33/50 ,  B01D33/804 ,  B01D33/805 ,  B01D33/806 ,  B01D33/808 ,  B63B13/00 ,  B63J4/002 ,  C02F1/004 ,  C02F1/008 ,  C02F2103/008 ,  C02F2201/001 ,  C02F2209/03 ,  C02F2209/11 ,  C02F2209/44 ,  C02F2303/16

Abstract: A ballast water treatment device including a cylindrical filter (2) that is disposed in a casing (1) and filters and externally discharges ballast water having flowed inside, comprising: a filter rotating unit (3) that rotates the filter (2) around a shaft center of the filter (2); a suction nozzle (4) that is disposed on the primary side of the filter (2) and opens toward the inner circumferential surface of the filter (2); a waste rinsing water discharging unit (5) that externally discharges waste rinsing water sucked by the suction nozzle (4) from the casing (1); a high-pressure fluid jet nozzle (40) that is disposed on the secondary side of the filter (2), opens toward the outer circumferential surface of the filter (2), and jets high-pressure fluid toward the filter (2); and a high-pressure fluid supplying unit (41) that supplies high-pressure fluid to the high-pressure fluid jet nozzle (40). The ballast water treatment device enables rinsing of the filter (2) to be performed efficiently and effectively, and achieves a simple structure and facilitated manufacture and maintenance.